CN101590480A - Medical garbage sorting recovery and multistage incineration treatment method - Google Patents
Medical garbage sorting recovery and multistage incineration treatment method Download PDFInfo
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- CN101590480A CN101590480A CNA2008101134991A CN200810113499A CN101590480A CN 101590480 A CN101590480 A CN 101590480A CN A2008101134991 A CNA2008101134991 A CN A2008101134991A CN 200810113499 A CN200810113499 A CN 200810113499A CN 101590480 A CN101590480 A CN 101590480A
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Abstract
The present invention relates to a kind of medical garbage sorting recovery and multistage incineration treatment method, comprise the following steps: (1) refuse collection and sterilization: after rubbish is collected from the sealing of collection occasion, carry out sterilization treatment by the mode of epoxyethane fumigation; (2) letter sorting: the material that can recycle sorts out, and in order to recycling, the compacting after fragmentation of remaining material is in order to burning disposal; (3) multistage burning: will need the material of burning disposal to send into kiln gas gasifier, and carry out multistage burning by the mechanical type connecting gear; (4) deslagging: discharge after the water quenched slag of high temperature fusion combustion furnace; (5) waste heat recovery and flue gas ash removal.The present invention can the realization medical waste of big limit in the recycling of useful material, reduce the material ratio of burning, help the recycling of physical resources, and reduce to the consumption of the energy with to the pollution of atmosphere.
Description
Technical field
The present invention relates to a kind of medical garbage sorting recovery and multistage incineration treatment method, be mainly used in recovery and final processing that medical waste and other have communicable Harmful Waste.
Background technology
Has communicable solid waste for medical waste etc., people have adopted multiple mode to handle, wherein the major technology direction is to burn, by burning microbial body is decomposed fully, no longer has any infectiousness, for example No. 200510048910.8 applications for a patent for invention of China disclose a kind of medical refuse circulating fluidized bed incinerating method, it is with the inert bed material of lime stone as recirculating fluidized bed, the sour gas neutralization reactions such as hydrogen chloride that produce in the calcium oxide that lime stone calcination at high temperature generates and hypochlorous acid in the medical waste and the pyrolytic incineration, after medical waste feeds the close phase section of incinerator combustion chamber, fluidised high temperature limestone particle inert bed material rapids is mixed with being, heat up, refuse pyrolysis, gasification, be divided into the gas-solid two-phase, gaseous product after the pyrolysis enters the suspension section combustion chamber to be continued to burn, a part of fine size is entrained in the suspension section combustion chamber with the light solid product of density and burns away after the pyrolysis, another part coarse size or density is high stays in the close phase section combustion chamber and burn, air-flow is being carried lime stone circulation fluidized bed material and flammable fine grained secretly and is being entered the gas solid separation combustion chamber and burn away, and lime stone and particle separate from air-flow in the gas solid separation combustion chamber sends close phase section combustion chamber back to and continue circulating combustion.In this way, medical waste is thoroughly decomposed and conversion, and in burning process, realize the deleterious acidic gas that may occur in the flue gas is held neutralization, to reduce pollution atmosphere by adding alkaline matter.This mode can effectively solve the infectiousness problem of medical waste, but owing to adopted the mode of burning, also brought fuel consumption, recoverable material to loss and problem such as atmosphere pollution, and Chinese 200310109675.1 applications for a patent for invention disclose a kind of medical waste treatment process, this technology comprises the steps: the first step, by waste conveyor medical waste is sent into the integrated treatment device, and sealing; Second step was 138 ℃-160 ℃ a steam to integrated treatment device delivery temperature, made pressure rise to 4-8 atmospheric pressure, and the retention time is 20-50 minute; The 3rd step, open integrated treatment device lower end garbage emission device, make medical waste enter gatherer in the sealing mode, steam is discharged from its chimney; In the 4th step, the medical waste in the gatherer is sent into separator by conveying mechanism; The 5th step went out the metal in the medical waste, battery sorting; In the 6th step, the medical waste after sorting is transported to the pulverizer pulverizing; In the 7th step, the rubbish after pulverizing is transported to the processing place.The high-temperature steam sterilization because this mode is gone ahead of the rest, carry out letter sorting to a certain extent then, reclaim the metal that to recycle and should not adopt the burning disposal battery, improved the combustion characteristics of material to a certain extent, but final processing is still by burning disposal, the problem of bringing because of burning interdependent.
Summary of the invention
For overcoming the above-mentioned defective of prior art, the invention provides a kind of medical garbage sorting recovery and multistage incineration treatment method, adopt this method, the recycling of useful material in the realization medical waste of limit greatly, reduced the material ratio of burning, therefore help the recycling of physical resources, and reduce to the consumption of the energy with to the pollution of atmosphere.
The present invention realizes that the technical scheme of above-mentioned purpose is: a kind of medical garbage sorting recovery and multistage incineration treatment method comprise the following steps:
(1) refuse collection and sterilization: rubbish after collection occasion sealing collection, is carried out sterilization treatment by the mode of epoxyethane fumigation;
(2) letter sorting: the material that can recycle sorts out, and in order to recycling, the compacting after fragmentation of remaining material is in order to burning disposal;
(3) multistage burning: will need the material of burning disposal to send into kiln gas gasifier, and carry out multistage burning, and comprise by the mechanical type connecting gear:
(a) in kiln gas gasifier, with material with the high-temperature flue gas counter current contacting heating after, carry out part heat release gasification;
(b) fuel gas with low heat value that generates that will gasify is sent into high temperature fusion combustion furnace;
(c) solid residue in the kiln gas gasifier is discharged after sorting unit with the metal monomer separation, in order to recycling, remainder is pulverized, be delivered in the high temperature fusion combustion furnace, and the fuel gas with low heat value of step (b) carries out melt-combustion together under hot-air is combustion-supporting by strength;
(4) deslagging: discharge after the water quenched slag of high temperature fusion combustion furnace;
(5) waste heat recovery and flue gas ash removal: adopt the economizer mode that the flue gas in the high temperature fusion combustion furnace is carried out preliminary recuperation of heat utilization, send into waste heat boiler again and carry out the recuperation of heat utilization, then flue gas is carried out the cyclone dust collectors dedusting, carry out desulfurization and dedusting by wet type desulfurizing dust collector again, up to standard after by smoke stack emission.
The invention has the beneficial effects as follows: adopt ripe at present solid sterilization technology to carry out the sterilization of medical waste, the medical waste after the sterilization loses infectiousness, can recycle as common rubbish.Because callable material ratio is bigger in the medical waste, therefore can recycle material greatly, reduce the burning amount of material greatly, improved the recycling ratio of material thus, simultaneously also because the present invention has adopted the mode of burning preferably, heat energy to material itself is made full use of, and has reduced thus and has burned energy resource consumption and the atmosphere pollution that brings.
Description of drawings
Fig. 1 is a schematic flow sheet of the present invention.
The specific embodiment
Medical garbage sorting recovery provided by the invention and multistage incineration treatment method comprise the following steps:
(1) refuse collection and sterilization: rubbish after collection occasion sealing collection, is carried out sterilization treatment by the mode of epoxyethane fumigation;
(2) letter sorting: the material that can recycle sorts out, and in order to recycling, the compacting after fragmentation of remaining material is in order to burning disposal;
(3) multistage burning: will need the material of burning disposal to send into kiln gas gasifier, and carry out multistage burning, and comprise by the mechanical type connecting gear:
(a) in kiln gas gasifier, with material with the high-temperature flue gas counter current contacting heating after, carry out part heat release gasification;
(b) fuel gas with low heat value that generates that will gasify is sent into high temperature fusion combustion furnace;
(c) solid residue in the kiln gas gasifier is discharged after sorting unit with the metal monomer separation, in order to recycling, remainder is pulverized, be delivered in the high temperature fusion combustion furnace, and the fuel gas with low heat value of step (b) carries out melt-combustion together under hot-air is combustion-supporting by strength;
(4) deslagging: discharge after the water quenched slag of high temperature fusion combustion furnace;
(5) waste heat recovery and flue gas ash removal: adopt the economizer mode that the flue gas in the high temperature fusion combustion furnace is carried out preliminary recuperation of heat utilization, send into waste heat boiler again and carry out the recuperation of heat utilization, then flue gas is carried out the cyclone dust collectors dedusting, carry out desulfurization and dedusting by wet type desulfurizing dust collector again, up to standard after by smoke stack emission.
In step (1), reply separate sources and different types of medical waste are collected separately, adopt different refuse containers to deposit, can not be suitable for processing mode of the present invention to wherein particular matter, should on the basis of collecting separately, handle separately according to pertinent regulations and common way, for example pathologic discarded object, radioactive substance or the like although these materials are listed the category of medical waste in, can not be sneaked into other medical wastes and carry out unified processing.What therefore, the present invention adapted to is not have the rubbish of independent process mode or the rubbish that needn't handle separately.
The mode of epoxyethane fumigation and equipment can adopt prior art, because the good penetrability of this sterilizing gas, sterilization thoroughly obtain long-term application in medical supplies, and cost is relatively low, can be used for the big sterilization of medical waste.
In step (2), can adopt arbitrarily prior art to carry out sorting, sorting can be divided into for two steps, comprise once letter sorting before the pulverization process and the secondary sorting after the pulverization process, a sorting can adopt manual type to carry out, bulk or the bulk material that can recycle sort out, disposable plastic goods for example, and these materials that sort out can adopt suitable recycling mode to handle.
After once sorting, leftover materials are pulverized, pulverize according to the mode that the disintegrating apparatus of selecting for use can adopt once pulverizing and secondary to pulverize, carry out the secondary sorting after the pulverizing.
The secondary sorting can be adopted mechanical system, comprising:
(a) magnetic separation adopts magnetic plant with the magnetisable material separating treatment in the material, and these magnetisable materials can be used as metallurgical raw material and recycled;
(b) selection by winnowing: the feed separation that proportion is lighter is handled, and these materials mostly are fiber-like and other organic materials, can be used to make composite building material etc. after cleaning and pulverizing;
(c) gravity jigging: the material sorting process that proportion is bigger, these materials mostly are inorganic minerals such as stone sand and metal etc., can come out by the feed separation that further technique of preparing will wherein contain higher metal, as metallurgical raw material, remaining material can be used for building materials or carry out landfill, owing to wherein less contain organic matter and nuisance, generally can not produce pollution behind this material landfill, and not require complicated landfill yard ground processing underground water and atmosphere;
(d) through remaining material after the above-mentioned sorting, comprising the organic matter of larger proportion, can briquet, the burning that enters next step.
Except above-mentioned incineration technology, can also adopt other various suitable existing incineration technologies, because the technology of this respect is more, scope that can be for you to choose is bigger, but what should note one is the consumption of fuel, should make full use of the combustibility of rubbish itself, reduce the consumption of fuel, the 2nd, avoid pollution to atmosphere, particularly reduce and avoid the generation of pollutants such as dioxin by the combustion technology that adapts to, the 3rd, the heat that burns is utilized fully.
Claims (10)
1. a medical garbage sorting recovery and multistage incineration treatment method is characterized in that comprising the following steps:
(1) refuse collection and sterilization: rubbish after collection occasion sealing collection, is carried out sterilization treatment by the mode of epoxyethane fumigation;
(2) letter sorting: the material that can recycle sorts out, and in order to recycling, the compacting after fragmentation of remaining material is in order to burning disposal;
(3) multistage burning: will need the material of burning disposal to send into kiln gas gasifier, and carry out multistage burning, and comprise by the mechanical type connecting gear:
(a) in kiln gas gasifier, with material with the high-temperature flue gas counter current contacting heating after, carry out part heat release gasification;
(b) fuel gas with low heat value that generates that will gasify is sent into high temperature fusion combustion furnace;
(c) solid residue in the kiln gas gasifier is discharged after sorting unit with the metal monomer separation, in order to recycling, remainder is pulverized, be delivered in the high temperature fusion combustion furnace, and the fuel gas with low heat value of step (b) carries out melt-combustion together under hot-air is combustion-supporting by strength;
(4) deslagging: discharge after the water quenched slag of high temperature fusion combustion furnace;
(5) waste heat recovery and flue gas ash removal: adopt the economizer mode that the flue gas in the high temperature fusion combustion furnace is carried out preliminary recuperation of heat utilization, send into waste heat boiler again and carry out the recuperation of heat utilization, then flue gas is carried out the cyclone dust collectors dedusting, carry out desulfurization and dedusting by wet type desulfurizing dust collector again, up to standard after by smoke stack emission.
2. medical garbage sorting recovery as claimed in claim 1 and multistage incineration treatment method is characterized in that: in step (1), reply separate sources and different types of medical waste are collected separately.
3. medical garbage sorting recovery as claimed in claim 2 and multistage incineration treatment method, it is characterized in that: will collect separately and independent the processing according to the discarded object that pertinent regulations and common way should collect separately and handle separately, and can not sneak in the unified medical waste of handling.
4. as claim 1,2 and 3 described medical garbage sorting recovery and multistage incineration treatment method, it is characterized in that: in step (2), sorting can be divided into for two steps, comprised once letter sorting before the pulverization process and the secondary sorting after the pulverization process.
5. medical garbage sorting recovery as claimed in claim 4 and multistage incineration treatment method is characterized in that: a described sorting adopts manual type to carry out, and bulk or the bulk material that can recycle sort out, and recycle separately.
6. medical garbage sorting recovery as claimed in claim 5 and multistage incineration treatment method is characterized in that: after once sorting, leftover materials are pulverized.
7. medical garbage sorting recovery as claimed in claim 6 and multistage incineration treatment method is characterized in that: adopt the described pulverizing of mode of once pulverizing and secondary pulverizing according to the disintegrating apparatus of selecting for use.
8. medical garbage sorting recovery as claimed in claim 7 and multistage incineration treatment method is characterized in that: carry out the secondary sorting after the pulverizing.
9. medical garbage sorting recovery as claimed in claim 8 and multistage incineration treatment method is characterized in that: mechanical system is adopted in described secondary sorting, comprising:
(a) magnetic separation adopts magnetic plant with the magnetisable material separating treatment in the material, and these magnetisable materials can be used as metallurgical raw material and recycled;
(b) selection by winnowing: the feed separation that proportion is lighter is handled, and these materials mostly are fiber-like and other organic materials, can be used to make composite building material etc. after cleaning and pulverizing;
(c) gravity jigging: the material sorting process that proportion is bigger, these materials mostly are inorganic minerals such as stone sand and metal etc., can come out by the feed separation that further technique of preparing will wherein contain higher metal, as metallurgical raw material, remaining material can be used for building materials or carry out landfill, owing to wherein less contain organic matter and nuisance, generally can not produce pollution behind this material landfill, and not require complicated landfill yard ground processing underground water and atmosphere.
10. medical garbage sorting recovery as claimed in claim 9 and multistage incineration treatment method is characterized in that: will be through remaining material after the above-mentioned sorting, briquet, the burning that enters next step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNA2008101134991A CN101590480A (en) | 2008-05-28 | 2008-05-28 | Medical garbage sorting recovery and multistage incineration treatment method |
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| CNA2008101134991A CN101590480A (en) | 2008-05-28 | 2008-05-28 | Medical garbage sorting recovery and multistage incineration treatment method |
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| CN101590480A true CN101590480A (en) | 2009-12-02 |
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| CNA2008101134991A Pending CN101590480A (en) | 2008-05-28 | 2008-05-28 | Medical garbage sorting recovery and multistage incineration treatment method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH705520A1 (en) * | 2011-09-07 | 2013-03-15 | Bra Turbo Ing Ag | Waste incineration plant for disposal of waste e.g. medical hazardous waste, has disinfectant container comprising pressure vessel or autoclave for disinfection or sterilization of hazardous waste under excess pressure |
| CN105665413A (en) * | 2016-01-18 | 2016-06-15 | 金思思 | Environment-friendly medical waste treatment device |
| CN107983749A (en) * | 2017-11-30 | 2018-05-04 | 邓秀名 | A kind of clinical waste recovery and treatment method |
| CN108787708A (en) * | 2018-06-14 | 2018-11-13 | 方碧水 | A kind of domestic garbage disposer |
| CN110594747A (en) * | 2019-10-16 | 2019-12-20 | 天津海关动植物与食品检测中心 | Cross-border biological product comprehensive quarantine treatment equipment and use method thereof |
| CN111250508A (en) * | 2020-01-16 | 2020-06-09 | 厦门市邑度高新技术有限公司 | Multistage classification processing system of wisdom medical waste |
| CN111678137A (en) * | 2020-06-15 | 2020-09-18 | 南京贝克勒尔智能科技有限公司 | Medical waste treatment system |
| CN114576630A (en) * | 2021-12-14 | 2022-06-03 | 淮安市第二人民医院 | Medical waste treatment device based on intelligent control |
-
2008
- 2008-05-28 CN CNA2008101134991A patent/CN101590480A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH705520A1 (en) * | 2011-09-07 | 2013-03-15 | Bra Turbo Ing Ag | Waste incineration plant for disposal of waste e.g. medical hazardous waste, has disinfectant container comprising pressure vessel or autoclave for disinfection or sterilization of hazardous waste under excess pressure |
| CN105665413A (en) * | 2016-01-18 | 2016-06-15 | 金思思 | Environment-friendly medical waste treatment device |
| CN107983749A (en) * | 2017-11-30 | 2018-05-04 | 邓秀名 | A kind of clinical waste recovery and treatment method |
| CN108787708A (en) * | 2018-06-14 | 2018-11-13 | 方碧水 | A kind of domestic garbage disposer |
| CN110594747A (en) * | 2019-10-16 | 2019-12-20 | 天津海关动植物与食品检测中心 | Cross-border biological product comprehensive quarantine treatment equipment and use method thereof |
| CN111250508A (en) * | 2020-01-16 | 2020-06-09 | 厦门市邑度高新技术有限公司 | Multistage classification processing system of wisdom medical waste |
| CN111250508B (en) * | 2020-01-16 | 2022-03-22 | 厦门市邑度高新技术有限公司 | Multistage classification processing system of wisdom medical waste |
| CN111678137A (en) * | 2020-06-15 | 2020-09-18 | 南京贝克勒尔智能科技有限公司 | Medical waste treatment system |
| CN114576630A (en) * | 2021-12-14 | 2022-06-03 | 淮安市第二人民医院 | Medical waste treatment device based on intelligent control |
| CN114576630B (en) * | 2021-12-14 | 2023-03-03 | 淮安市第二人民医院 | Medical waste treatment device based on intelligent control |
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Open date: 20091202 |